Meanings of felonious intent in English

I once grew opium poppies in my garden-yes ,withfelonious intent.

Let me hasten to assure you that I came here with no felonious intent at all.

We have the proper authority to recover a stolen wife, a captive, a prisoner held in restraint with felonious intent.

The lunch is delightful, and Violet confesses that yesterday they all entered with felonious intent, and did eat and drink, and surreptitiously waste and destroy.

"Very well," said the prisoner's counsel; "then there is no felonious intent in that case-itis merely a mistake.